"What is this place?" Naruto asked, looking at the sign on top of the entrance, "Is this a secret training place? When was this built?"
Curious, he walked to the entrance, inspecting the sign, the entrance, and its surrounding.
Meanwhile, Kakashi, who saw his student's action, suddenly pulled his scarf down and let out a sigh of relief. His eyes, though, never left the sight in front of him.
There was a reason for his action, a good reason to not hide his sharingan anymore. It was because the area was covered in a strange space, something a bit familiar to him due to the nature of his mangekyou sharingan technique.
"We need to report this to Tsunade-sama." He said, looking around.
Naruto, hearing this, turned to his teacher.
"Sensei, what's wrong?"
"We need to get back to Konoha." The man answered. "We can't go inside. This place wasn't here when they conducted a patrol a week ago. It appeared suddenly and unexpectedly, like a space rift. Most probably, this was the reason the birds fled from this place a moment ago."
Naruto raised an eyebrow. He didn't feel the danger of the entrance, but he could tell something was wrong. It wasn't something a regular person would feel.
But then, Naruto wasn't a regular person. He nodded to Kakashi and walked out of the entrance, returning to the village with him. They would need to talk to the Hokage, Tsunade.
The village leader, who had golden hair, was waiting inside the Hokage Tower with an ugly frown, a sign of her annoyance at the two ninjas who dared to enter her office while she was working. The blonde woman, wearing an aged green robe and with her hands crossed together, looked at the two with an uninterested stare, before her attention was directed at them.
"What?" She said, annoyance was clear in her voice.
"We found a suspicious cave." Kakashi reported, "The entrance had a sign saying Fun Fun Dungeon! written on it, saying that it had a 6 people limit. Most probably, it just appeared suddenly and dangerous. A space-related ninjutsu might be at work. Either that or..."
"The cave has been there for a long time and the seal that hides it has gone off." Tsunade narrowed her eyes and finished Kakashi's words, eliciting a nod from the Jounin.
Silence descended upon the Hokage room as Tsunade held her forehead, calming the throbbing headache down. She wasn't a fan of strange phenomena that she had no control over.
"I will send a team to investigate. Who's available now?"
"I believe Guy Team is available." Kakashi suggested.
"And I am also free!" Naruto pointed at himself with his thumb.
The blonde woman nodded and wrote a scroll. "Go to Neji. Give him the mission and have him and his team go with Kakashi and Naruto."
A masked ninja suddenly appeared from behind the Hokage's chair and took the mission scroll, vanishing away in the next moment. Tsunade stared at the empty air where the Anbu was for a while before returning to her paperwork.
Meanwhile, Kakashi sighed in disappointment, "Why me?"
He didn't expect to be dragged into this. At least, not after he got the new Icha Icha paradise. He just wanted to read his book, but order was an order.
And as a shinobi, he was trained to obey.
***
As the Ninjas, and the Devils, prepared for their dungeon run, Cain also started planning for his big scale dungeon. He drew the rough design and the planned traps and monsters in a paper he bought from the store and grumbled.
Something had troubled him since he finished the rough design of his third dungeon.
The reason?
It was because he had to plan the entire thing from the ground up, as his previous dungeons were small. The third one, meanwhile, would be big, a castle that could fit tens of challengers at once, a large dungeon where the intruders had to tread carefully, create a map, strategize, and work as a team.
Everyone should be able to enjoy his dungeon. Not just Ninja, Devils, or supernatural entities, but even normal people. That way, he would get more audience that could bring him more Coins.
And so, he was thinking about the design, and then it hit him.
He could take inspiration from a famous MMORPG novel and anime, Sword Art Online. A flying castle called Aincrad, the world where the players were stuck. The floor design and traps he had seen on the series should be useful.
However, that was only a small part of it. While the first problem was solved with a little bit of inspiration, where he could assign people to start on the early floor, another problem came up.
"What if Azazel or Sirzechs entered? Or what if Naruto suddenly went berserk and released 9 tails? The dungeon would be a mess."
And it wasn't only them. There were also people who were stronger, like Madara, Kaguya, and the other Devil Kings who were more than capable to wreck havoc. They were strong enough to beat a single floor in the blink of eye.
Limiting their entry would be impossible because his current authority wasn't strong enough. But if he didn't limit their entrance, he wouldn't get anything. If they were to enter his dungeon and reach the end, he would be forced to pay the reward.
Thankfully, they were so busy with their own affairs that such a thing wasn't a priority. Otherwise, he would go bankrupt and have no Coins to buy food.
"I will not worry about that for now. There is a more pressing problem."
Right, the last and most important problem that made Cain hit his head to his desk repeatedly, the one that caused him to lose focus, the lack of entertainment, and the biggest problem that was hindering his planning. A big problem, so big he had no answer for it.
"The lack of Coins! I need more Coins to finish this project! Should I tone it down and save this for the next dungeon? I can create a big dungeon for more than 20 people with my current Coins. That should be enough, right?"
But the more he thought about it, the less he could do. His ambition and imagination were bigger than the amount of Coins he had.
How troubling.
***
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